A nocturnal bird of South America and Trinidad (Steatornis caripensis or Steatornis steatornis); the oilbird.

(pharmacology) An ester resulting from the combination of aspirin and guaiacol, used as a drug to treat inflammatory respiratory diseases.

Any of various vine-like climbing plants of Central and South America and the West Indies, including Mikania and Aristolochia species, reputed to have curative powers.

plural of guaco

A bird, Ortalis ruficauda. / (music) A percussion instrument in the form of a partly hollowed tube with ridges carved in its outer surface, played with a wire fork.

plural of guacharaca